Some of the thickest Arctic ice broke open in May 2020 with a 3000-square-kilometer crack called a “polynya.”

Some of the thickest Arctic ice broke open in May 2020 with a 3000-square-kilometer crack called a “polynya.”
The gravitational push and pull by Jupiter’s moons could account for more warming than the gas giant Jupiter alone.
Scientists model the effects of spraying aerosols into the stratosphere and discover some unintended consequences.